These particular computations are similar to those used in polygon overlay: intersections are computed, nodes and links are formed, topology is established, and attribute tables are updated.
这些特殊计算与那些是相似被使用在重覆叠盖的几何图形：交叉点被计算，点和连接被形成，拓扑结构建立，并且更新属性表格。
Each new polygon is a new object that is represented by a row in the attribute table.
每一个新的几何图形是由列表示在属性表格中的一个新对象。
Each new polygon is a new object that is represented by a row in the attribute table.
每一个新的几何图形是由列表示在属性表格中的一个新对象。
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